Class: Pione::Util::CGIExecutor

Inherits:
Object
  • Object
show all
Defined in:
lib/pione/util/cgi.rb

Overview

CGIExecutor is a execution helper for CGI programs.

Instance Method Summary collapse

Constructor Details

#initialize(cgi_path, cgi_info, chdir, timeout) ⇒ CGIExecutor

Returns a new instance of CGIExecutor.

Parameters:

  • cgi_path (Pathname) —

    path of the CGI program

  • cgi_info (CGIInfo) —

    various informations for CGI program



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# File 'lib/pione/util/cgi.rb', line 144

def initialize(cgi_path, cgi_info, chdir, timeout)
  @cgi_path = cgi_path
  @cgi_info = cgi_info
  @chdir = chdir
  @timeout = timeout
  @umask = 077
  @cgi_stdin = Temppath.create
  @cgi_stdout = Temppath.create
  @pid = nil
end

Instance Method Details

#exec ⇒ Object

Execute the CGI program.



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# File 'lib/pione/util/cgi.rb', line 156

def exec
  unless @cgi_path.exist?
    raise CGIError.not_exist(@cgi_path)
  end

  env = @cgi_info.create_env
  options = create_options
  args = @cgi_info.create_arguments

  Timeout.timeout(@timeout) do
    @pid = Kernel.spawn(env, @cgi_path.to_s, *args, options)
    Process.waitpid(@pid)
    if @cgi_stdout.exist?
      return analyze_response(Location[@cgi_stdout].read)
    else
      raise CGIError.response_not_found
    end
  end
rescue Timeout::Error
  if @pid
    begin
      Process.kill(15, @pid)
    rescue
    ensure
      CGIError.timeouted
    end
  end
rescue Errno::EACCES => e
  CGIError.cannot_execute_cgi(@cgi_path)
end